#344A5E
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.044 246.6), rgb(52, 74, 94).
Aa
White text reads best on this color (9.18:1).
About this color
#344A5E is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.044 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.020 away. White text reads best on it, at 9.18:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #344A5E |
| RGB | rgb(52, 74, 94) |
| HSL | hsl(209, 29%, 29%) |
| OKLCH | oklch(40% 0.044 246.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #344A5E | 9.18:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #344A5E | 2.28:1 | Fails | Lc 12.9 | Not readable |
| #344A5E text on white | 9.18:1 | AAA | Lc 91.1 | Preferred for body text |
| #344A5E text on black | 2.28:1 | Fails | Lc -11.2 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE5
oklch(88.6% 0.018 245.4)
-
Step 300
300
#B0C3D5
oklch(80.8% 0.033 246.8)
-
Step 400
400
#87A4C0
oklch(70.7% 0.052 247.7)
-
Step 500
500
#688EB0
oklch(63.2% 0.067 246.1)
-
Step 600
600
#4F779C
oklch(55.5% 0.073 247.4)
-
Step 700
700
#406485
oklch(49% 0.068 247.3)
-
Step 800
800
#35526C
oklch(42.7% 0.056 246.6)
-
Step 900
900 (this color)
#344A5E
oklch(40% 0.044 246.6)
-
Step 950
950
#1B2833
oklch(27% 0.027 244.6)
#344A5E with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #424A5F | 0.020 |
| Deuteranopia (no green cones) | #3D465E | 0.017 |
| Tritanopia (no blue cones) | #244F51 | 0.037 |
| Achromatopsia (no color) | #484848 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344A5E
#344A5E
oklch(40% 0.044 246.6)
- #58432E
#58432E
oklch(40% 0.044 66)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #344A5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.020
- Charcoal #264653 ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.048
- Deep Teal #00555A ΔE 0.050
- Dark Teal #014D4E ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.061
- YInMn Blue #415A77 ΔE 0.062
Use #344A5E in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.